package com.bkhech.nettyhttp.server;

import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.socket.SocketChannel;
import io.netty.handler.codec.http.HttpContentCompressor;
import io.netty.handler.codec.http.HttpObjectAggregator;
import io.netty.handler.codec.http.HttpRequestDecoder;
import io.netty.handler.codec.http.HttpResponseEncoder;
import io.netty.handler.ssl.SslContext;

/**
 * ServerHandlerInit
 *
 * @author guowm
 * @date 2024/4/1
 */
public class ServerHandlerInit extends ChannelInitializer<SocketChannel> {

    private final SslContext sslCtx;

    public ServerHandlerInit(SslContext sslCtx) {
        this.sslCtx = sslCtx;
    }

    @Override
    protected void initChannel(SocketChannel ch) throws Exception {
        ChannelPipeline ph = ch.pipeline();
        if (sslCtx != null) {
            ph.addLast(sslCtx.newHandler(ch.alloc()));
        }
        /*把应答报文 编码*/
        ph.addLast("encoder", new HttpResponseEncoder());
        /*把请求报文 解码*/
        ph.addLast("decoder", new HttpRequestDecoder());


        /*这个聚合器主要是将 HttpMessage 聚合成http为一个完整的报文，即 FullHttpRequest/FullHttpResponse*/
        ph.addLast("aggregator",
                new HttpObjectAggregator(10 * 1024 * 1024));
        /*把应答报文 压缩，非必要*/
        ph.addLast("compressor", new HttpContentCompressor());
        ph.addLast(new BusiHandler());
    }
}
